Home / 783,418.76-1,081,448.56-529,114.40

Finding the Fourth Proportional to 783,418.76, 1,081,448.56 and 529,114.40

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Solution

The fourth proportional to 783,418.76, 1,081,448.56 and 529,114.40 is: 730,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,418.76 : 1,081,448.56 = 529,114.40 : x
  2. Step 2: Convert to fraction form
    783,418.76/1,081,448.56 = 529,114.40/x
  3. Step 3: Cross multiply
    783,418.76x = 1,081,448.56 × 529,114.40
  4. Step 4: Simplify right side
    783,418.76x = 572,210,005,955.26
  5. Step 5: Solve for x
    x = 572,210,005,955.26/783,418.76
  6. Step 6: Final answer
    x = 730,401.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.